Acoustic Guitar Construction

Hello everyone. This issue that I am running into has happened for the second time now and I don't know what to do.

I have just closed the Box and glued the top onto the sides and back a couple of days ago and I brought the body inside (from being in the woodshop) to keep it in a safe location. This morning I noticed that the back has lost all of its 15' radius! What do I do?

Any help would be greatly appreciated.

Seems like you have lower RF in the house then in the shop -- put in a sound hole humidifier or a lightly dampened sponge inside likely the dome will return. This very common when the wide flat back braces are used. Its important that have the guitar in an area with RH of about 50% when installing the neck and doing set up. I would not recommend doing anything more then be resolved to the fact that you'll need to keep this guitar properly humidified -- case unit and sound hole. Chances are the top has caved in a bit too, but that is not as noticeable.